:root {
  --ink: #173040;
  --muted: #5a7382;
  --bg: #f2f7fa;
  --mist: #e4eef4;
  --white: #ffffff;
  --line: rgba(23, 48, 64, 0.12);
  --sky: #1f8eb8;
  --sky-deep: #156f91;
  --sky-soft: #7ec8e6;
  --mint: #2f9a86;
  --on-sky: #f4fbff;
  --font: 'Anuphan', sans-serif;
  --heading: 'Kanit', 'Anuphan', sans-serif;
  --mono: 'IBM Plex Mono', 'Anuphan', monospace;
  --max: 920px;
  --demo-h: 48px;
  --header-h: 72px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --radius: 10px;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: 120px; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}
body {
  font-family: var(--font); color: var(--ink); line-height: 1.65; overflow-x: hidden; font-synthesis: none;
  background:
    radial-gradient(ellipse 55% 40% at 100% 0%, rgba(31, 142, 184, 0.12), transparent 55%),
    radial-gradient(ellipse 40% 35% at 0% 30%, rgba(47, 154, 134, 0.09), transparent 50%),
    var(--bg);
}
img { max-width: 100%; display: block; } a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; font-size: 16px; } ul, ol { list-style: none; }
.wrap { width: min(100% - 2.5rem, var(--max)); margin-inline: auto; }
:focus-visible { outline: 2px solid var(--sky); outline-offset: 3px; }

.demo-bar { position: sticky; top: 0; z-index: 60; display: flex; justify-content: space-between; align-items: center; gap: 1rem; flex-wrap: wrap; padding: .55rem 1.25rem; background: #102430; color: #fff; font-size: .82rem; }
.demo-bar strong { font-family: var(--mono); font-size: .68rem; letter-spacing: .06em; color: var(--sky-soft); font-weight: 500; }
.demo-bar__actions { display: flex; gap: .45rem; flex-wrap: wrap; }
.demo-bar a { padding: .35rem .7rem; border: 1px solid rgba(255,255,255,.25); border-radius: var(--radius); font-size: .78rem; font-weight: 500; }
.demo-bar a.is-primary { background: var(--sky); border-color: var(--sky); color: var(--on-sky); }

.site-header { position: sticky; top: var(--demo-h); z-index: 50; background: rgba(242, 247, 250, .94); backdrop-filter: blur(14px); border-bottom: 1px solid var(--line); }
.site-header__inner { display: flex; align-items: center; justify-content: space-between; min-height: var(--header-h); position: relative; }
.brand { font-family: var(--heading); font-weight: 700; font-size: 1.25rem; display: inline-flex; align-items: baseline; gap: .45rem; }
.brand small { font-family: var(--mono); font-size: .62rem; letter-spacing: .1em; text-transform: uppercase; color: var(--sky-deep); font-weight: 500; }
.menu-toggle { display: none; background: none; border: 1px solid var(--line); padding: .45rem .8rem; cursor: pointer; border-radius: var(--radius); color: var(--ink); }
.nav { display: flex; align-items: center; gap: 1.15rem; }
.nav a { font-size: .92rem; font-weight: 500; color: var(--muted); }
.nav-cta { background: var(--sky); color: var(--on-sky) !important; padding: .55rem 1.05rem; border-radius: var(--radius); font-weight: 700; }

.btn { display: inline-flex; align-items: center; justify-content: center; padding: .9rem 1.4rem; font-weight: 700; border-radius: var(--radius); border: 1.5px solid transparent; cursor: pointer; transition: transform .2s var(--ease); }
.btn:hover { transform: translateY(-2px); }
.btn--sky { background: var(--sky); color: var(--on-sky); }
.btn--ghost { color: #fff; border-color: rgba(255,255,255,.45); background: transparent; }
.btn--block { width: 100%; }
.btn-row { display: flex; flex-wrap: wrap; gap: .75rem; }

.hero { position: relative; min-height: min(90dvh, 820px); display: flex; align-items: flex-end; color: #fff; overflow: hidden; }
.hero__media { position: absolute; inset: 0; }
.hero__media img { width: 100%; height: 100%; object-fit: cover; animation: ken 20s var(--ease) both; }
.hero__media::after { content: ''; position: absolute; inset: 0; background: linear-gradient(120deg, rgba(12, 34, 46, .9) 0%, rgba(12, 34, 46, .5) 55%, rgba(12, 34, 46, .25) 100%); }
.hero__inner { position: relative; z-index: 2; padding: 5rem 0 3.5rem; max-width: 36rem; margin-left: max(calc((100% - var(--max)) / 2), 1.25rem); width: min(100% - 2.5rem, 36rem); animation: rise .9s var(--ease) both; }
.hero__brand { font-family: var(--heading); font-size: 1.15rem; font-weight: 700; margin-bottom: 1rem; display: flex; gap: .5rem; align-items: baseline; flex-wrap: wrap; }
.hero__brand span { font-family: var(--mono); font-size: .68rem; letter-spacing: .12em; text-transform: uppercase; color: var(--sky-soft); }
.hero h1 { font-family: var(--heading); font-size: clamp(2.2rem, 5.2vw, 3.4rem); line-height: 1.15; letter-spacing: -.02em; margin-bottom: .9rem; }
.hero h1 em { display: block; font-style: normal; color: var(--sky-soft); font-size: .68em; margin-top: .3rem; }
.hero__lead { color: rgba(255,255,255,.88); margin-bottom: 1.5rem; }
@keyframes ken { from { transform: scale(1.05); } to { transform: scale(1); } }
@keyframes rise { from { opacity: 0; transform: translateY(22px); } to { opacity: 1; transform: none; } }
@keyframes drawRail { from { transform: scaleY(0); } to { transform: scaleY(1); } }

.section { padding: 4.5rem 0; }
.section--mist { background: var(--mist); }
.section--form { background: linear-gradient(180deg, #dff0f6, #eef6fa); }
.section__head { margin-bottom: 2rem; max-width: 38rem; }
.section__head h2 { font-family: var(--heading); font-size: clamp(1.7rem, 3.2vw, 2.35rem); letter-spacing: -.02em; margin-bottom: .5rem; }
.section__head p { color: var(--muted); }
.eyebrow { font-family: var(--mono); font-size: .7rem; letter-spacing: .1em; text-transform: uppercase; color: var(--sky-deep); margin-bottom: .5rem; }
.mono { font-family: var(--mono); }

/* PARCEL PATH — signature journey */
.path { display: grid; gap: 0; position: relative; }
.path__step { position: relative; }
.path__step a {
  display: grid; grid-template-columns: 4.25rem 1fr; gap: 1.1rem; align-items: start;
  padding: 1.15rem 0; transition: transform .25s var(--ease);
}
.path__step a:hover { transform: translateX(4px); }
.path__mark {
  width: 3.4rem; height: 3.4rem; border-radius: 50%; display: grid; place-items: center;
  background: var(--white); border: 2px solid var(--sky); color: var(--sky-deep);
  font-size: .85rem; font-weight: 600; letter-spacing: .04em; position: relative; z-index: 2;
  box-shadow: 0 0 0 6px var(--bg);
}
.path__step:nth-child(2) .path__mark { border-color: color-mix(in srgb, var(--sky) 70%, var(--mint)); }
.path__step:nth-child(3) .path__mark { border-color: var(--mint); color: #1f6f60; }
.path__step--last .path__mark { background: var(--sky); color: var(--on-sky); border-color: var(--sky); }
.path__rail {
  position: absolute; left: 1.6rem; top: 3.5rem; bottom: -.15rem; width: 2px;
  background: linear-gradient(180deg, var(--sky), var(--mint));
  transform-origin: top; animation: drawRail 1.1s var(--ease) both;
}
.path__en { font-size: .68rem; letter-spacing: .12em; text-transform: uppercase; color: var(--sky-deep); margin-bottom: .25rem; }
.path__body h3 { font-family: var(--heading); font-size: 1.35rem; margin-bottom: .35rem; }
.path__body > p { color: var(--muted); font-size: .95rem; max-width: 34rem; }
.path__cta {
  display: inline-block; margin-top: .65rem; font-family: var(--mono); font-size: .72rem;
  letter-spacing: .06em; color: var(--sky-deep); font-weight: 600;
}

.plans { display: grid; gap: .7rem; }
.plan {
  display: grid; grid-template-columns: 4.5rem 1.2fr 1fr auto; gap: 1rem; align-items: center;
  background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); padding: 1rem 1.15rem;
  transition: transform .25s var(--ease), border-color .2s, box-shadow .25s;
}
.plan:hover { transform: translateX(4px); border-color: color-mix(in srgb, var(--sky) 45%, var(--line)); box-shadow: 0 10px 24px rgba(23, 48, 64, 0.06); }
.plan--focus { border-color: color-mix(in srgb, var(--sky) 40%, var(--line)); background: linear-gradient(90deg, #f4fbff, var(--white)); }
.plan__tag {
  font-size: .68rem; letter-spacing: .1em; text-align: center; padding: .65rem .3rem;
  background: color-mix(in srgb, var(--sky) 14%, white); color: var(--sky-deep); border-radius: 6px; font-weight: 600;
}
.plan strong { font-family: var(--heading); font-size: 1.08rem; }
.plan small { color: var(--muted); font-size: .88rem; }
.plan__price { font-family: var(--heading); font-weight: 700; color: var(--sky-deep); white-space: nowrap; font-variant-numeric: tabular-nums; }

.proof { display: grid; grid-template-columns: repeat(3, 1fr); gap: .85rem; margin-bottom: 2.5rem; }
.proof figure { margin: 0; overflow: hidden; border-radius: var(--radius); background: var(--white); border: 1px solid var(--line); }
.proof img { width: 100%; aspect-ratio: 4/3; object-fit: cover; transition: transform .55s var(--ease); }
.proof figure:hover img { transform: scale(1.04); }
.proof figcaption { padding: .7rem .85rem; font-size: .88rem; color: var(--muted); }

.voices { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; }
.voices blockquote { border-top: 3px solid var(--sky); padding-top: 1.1rem; }
.voices p { font-family: var(--heading); font-size: 1.15rem; line-height: 1.4; margin-bottom: .7rem; }
.voices footer { color: var(--muted); font-size: .9rem; }

.book { display: grid; grid-template-columns: .9fr 1.1fr; gap: 2.5rem; }
.book h2 { font-family: var(--heading); font-size: clamp(1.8rem, 3vw, 2.4rem); margin: .4rem 0 .7rem; }
.form { background: var(--white); padding: 1.6rem; border-radius: var(--radius); border: 1px solid var(--line); display: grid; gap: .9rem; }
.field { display: grid; gap: .3rem; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: .75rem; }
.field label { font-size: .85rem; font-weight: 500; color: var(--muted); }
.field input, .field select, .field textarea { padding: .75rem .9rem; border: 1px solid var(--line); border-radius: 8px; background: #f7fbfd; }

.site-footer { background: #102430; color: rgba(255,255,255,.75); padding: 1.75rem 0; }
.footer { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 1rem; }
.site-footer .brand { color: #fff; }

.reveal { opacity: 0; transform: translateY(16px); transition: opacity .65s var(--ease), transform .65s var(--ease); }
.reveal.is-in { opacity: 1; transform: none; }

@media (max-width: 900px) {
  .proof, .voices, .book { grid-template-columns: 1fr; }
  .plan { grid-template-columns: 4rem 1fr; }
  .plan small, .plan__price { grid-column: 2; }
  .field-row { grid-template-columns: 1fr; }
}
@media (max-width: 720px) {
  .menu-toggle { display: block; }
  .nav { display: none; position: absolute; left: 0; right: 0; top: 100%; flex-direction: column; background: var(--bg); border-bottom: 1px solid var(--line); padding: .75rem 1.25rem 1rem; }
  .nav.is-open { display: flex; }
  .nav a { padding: .7rem 0; border-bottom: 1px solid var(--line); }
  .path__step a { grid-template-columns: 3.4rem 1fr; gap: .85rem; }
  .path__mark { width: 2.9rem; height: 2.9rem; font-size: .75rem; }
  .path__rail { left: 1.35rem; top: 3.1rem; }
}
@media (prefers-reduced-motion: reduce) {
  .hero__media img, .hero__inner, .path__rail { animation: none; }
  .reveal { opacity: 1; transform: none; transition: none; }
}